# US 12,007,461 B2 · Shared aperture antenna array

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- Number: US 12,007,461 B2
- Document ID: US12007461B2
- Status: Granted
- Kind: B2
- Application number: 17/169,344
- Filed: 2021-02-05
- Published: 2021-08-19
- Granted: 2024-06-11
- Earliest claimed: 2014-02-12
- Assignees: Battelle Memorial Institute
- Applicants: Battelle Memorial Institute
- Inventors: Jonathan R. Tedeschi; A. Mark Jones
- Web page: https://patentgrep.com/patent/US12007461B2

## CPC

- G01S 13/02: Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S 7/03: Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- H01Q 9/0435: {using two feed points}
- H01Q 9/285: {Planar dipole (H01Q9/065 takes precedence; patch antenna H01Q9/0407)}
- H01Q 21/0006: {Particular feeding systems}
- H01Q 21/062: {using dipole aerials; (H01Q21/067, H01Q21/068 take precedence)}
- H01Q 21/24: Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)}
- G01S 2013/0254: {Active array antenna}
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A shared aperture antenna array including an array of antennas is disclosed. Elements of neighboring antennas are shared to create additional antennas. The shared elements include radiating patches and apertures. Each antenna shares an aperture with neighboring antennas. The array of antennas may be linear or two-dimensional. A phase shifting network with single-pole-single-throw reflective switches may be coupled to the antennas.

## Claims

### Claim 1

A linear antenna array comprising shared patches between a pair of antennas wherein each shared patch comprises at least one feed point located at a corner of each shared patch, wherein each of the pairs of antennas has at least a pair of radiating patches that provide at least four radiating patches between the pair of antennas.

### Claim 2 (depends on 1)

The linear antenna array of claim 1 wherein the pair of antennas are printed on a dielectric substrate.

### Claim 3 (depends on 1)

The linear array of claim 1 wherein the pair of antennas are located above a ground plane.

### Claim 4 (depends on 1)

The linear array of claim 1 further comprising a third antenna that includes the shared patch.

### Claim 5 (depends on 1)

The linear antenna array of claim 1 wherein the feed points of the shared patches is phased to configure the shared patches 180 degrees out of phase.

### Claim 6 (depends on 1)

The linear antenna array of claim 1 wherein each of the shared patches includes a pair of feed points.

### Claim 7

A linear antenna array comprising shared patches between a pair of antennas wherein each shared patch comprises at least one feed point located at a corner of each shared patch, wherein each of the antennas is a foursquare antenna, and one pair of patches of one foursquare antenna is shared with another pair of patches of another abutting foursquare antenna to form a third foursquare antenna.